Recombination of H atoms on the dust in fusion plasmas

Journal Article · Wed Jul 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4927131· OSTI ID:22490021

Bakhtiyari-Ramezani, M., E-mail: [e-mail]; Alinejad, N., E-mail: [e-mail] ^[1]; Mahmoodi, J., E-mail: [e-mail] ^[2]

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1. Plasma Physics and Nuclear Fusion Research School, Nuclear Science and Technology Research Institute (NSTRI), 14395-836 Tehran (Iran, Islamic Republic of)
2. Department of Physics, Faculty of Science, Qom University, Qom (Iran, Islamic Republic of)

We survey a model for theoretical study of the interaction of hydrogen and dust surface and apply our results for dusty plasmas to fusion devices. In this model, considering the mobility of ad-atoms from one physisorbed, or chemisorbed site, to other one by thermal diffusion, we describe the formation of H{sub 2} on grain surfaces. Finally, we calculate the formation rate on the high temperature dust surfaces for a range of temperature and density in typical conditions of divertor of tokamak.

• OSTI ID: 22490021
• Journal Information: Physics of Plasmas, Vol. 22, Issue 7; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHEMISORPTION
DIVERTORS
DUSTS
HYDROGEN
INTERACTIONS
PARTICLE MOBILITY
PLASMA
RECOMBINATION
TEMPERATURE RANGE 0400-1000 K
THERMAL DIFFUSION
TOKAMAK DEVICES